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arXiv quant-ph/0108132quant-ph
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量子轨道的一个简单模型

A simple model of quantum trajectories

Todd A. Brun

摘要:

量子轨道理论主要是在量子光学领域发展起来的,用来描述受到连续监测的开放量子系统,在量子物理的许多领域都有应用。在本文中,我提出了一个简单的模型,使用两个级别的量子系统(q比特),来说明量子轨道的基本物理,以及不同的监控方案如何对应于不同的“解开”的混合状态主方程。我还简要地评论了该理论的一致的历史形式主义和自发崩溃模型的关系。

英文摘要:

Quantum trajectory theory, developed largely in the quantum optics community to describe open quantum systems subjected to continuous monitoring, has applications in many areas of quantum physics. In this paper I present a simple model, using two-level quantum systems (q-bits), to illustrate the essential physics of quantum trajectories and how different monitoring schemes correspond to different ``unravelings'' of a mixed state master equation. I also comment briefly on the relationship of the theory to the Consistent Histories formalism and to spontaneous collapse models.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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